diff --git a/pkgs/servers/monitoring/net-snmp/default.nix b/pkgs/servers/monitoring/net-snmp/default.nix
index 27a6e01dba3d..5e4f1545e582 100644
--- a/pkgs/servers/monitoring/net-snmp/default.nix
+++ b/pkgs/servers/monitoring/net-snmp/default.nix
@@ -3,11 +3,11 @@
 
 stdenv.mkDerivation rec {
   pname = "net-snmp";
-  version = "5.9";
+  version = "5.9.1";
 
   src = fetchurl {
     url = "mirror://sourceforge/net-snmp/${pname}-${version}.tar.gz";
-    sha256 = "0wb0vyafpspw3mcifkjjmf17r1r80kjvslycscb8nvaxz1k3lc04";
+    sha256 = "sha256-63/UpE3mzdv/2akqha0TCeXBBU+51afdkweciVP0jD8=";
   };
 
   patches =